Bracket for thread cleaners



9 J. GIET ET AL.

BRACKET FOR THREAD CLEANERS Filed Aug. 22, 19159 JOHN G/E T HENRY M/EDENPOHEJA? INVENTORS wa w W ATTORNEY.

PatentedApr. 8, 1941 anneal BRAGKET FOR THREAD CLEANERS John Giet, Jamaica, N. Y., and Henry Miedcndorp, Jr., Glen Rock, N. J.

Application August 22, 1939, Serial No. 291,339

3 Claims.

This invention relates generally to improve-- ments in brackets for thread cleaning devices, but more specifically to a bracket used in conjunction with thread cleaner blades of the nonadjustable type.

The main object of the invention resides in the provision of a bracket for thread cleaner blades, which is adapted to firmly and operatively engage and to disengage said blades by a simple snapping operation and which is also adapted to be firmly and operatively secured at any position along the traverse bar of a machine such as a winding machine without the use of any screws, or nuts and bolts.

Another object of the invention resides in the provision of a bracket for integral cleaner blades which is simple in construction, easy to apply, efficient in operation, economical to manufacture and which carries therewith a guide roller for the thread to be cleaned, the said guide roller being adapted to cooperate with either another thread guide mounted on the traverse bar or, as described, with the rounded edges of a cleaner blade slot, thereby eliminating the necessity of a second thread guide as will hereinafter appear.

These objects and other incidental ends and advantages of the invention will hereinafter appear in the progress of the disclosure and as pointed out in the appended claims.

Accompanying this specification is a drawing showing a preferred form of the invention wherein corresponding reference characters designate corresponding parts throughout the several views and wherein:

Figure 1 is a front view in elevation showing the bracket above described as applied to a traverse bar, the said bracket having secured thereon a metallic cleaner blade'of the non-adjustable type.

Figure 2 is a sectional view of Figure 1 along is an end view in elevation of Fig- I-Ieretofore, brackets used for metallic cleaner blades of the integral type were equipped to have blades secured thereto by means of screws or bolts and nuts and the brackets themselves were secured along the traverse bar in the same way. Such engagement between the blade and the bracket and betweenthe bracket and traverse bar made it laborious to replace blades for the usual reasons and remove brackets for transfer toother positions and machines.

The bracket shown herein is illustrationally applied to a winder mechanism although it may be applied to other mechanisms on which thread cleaning may be effected. In the figures of the drawing, numeral it indicates a swift upon which a skein of thread H to be cleaned is wound, the said thread being fed over a conventional traverse bar l2 which reciprocates before a plurality of driven bobbins on a common shaft, the bobbin shown being indicated diagrammatically by numeral I3.

The bracket, generally indicated by numeral this preferably constructed by a stamping operation from sheet spring metal, the said bracket essentially having two clamping portions, a cleaner blade clamping portion and a traverse bar clamping portion. The cleaner blade clamping portion consists of spaced and aligned front and rear walls 15 and i8 joined at the bottom by a narrow horizontal wall H, the front wall Iii extending above the top of rear wall It. Above the central horizontal aXis of wall 55 is a rectangular cut-out portion [8 forming two side arms l9, til, the terminals of which are forwardly curled over to form journals 2t, 2!] for a rotatable guide or roller such as porcelain roller 2|, the said roller being prevented from longitudinal displacement by means of lugs 22, 22 projecting forwardly from arms l9, l9 across the ends of journals 2b, 2b. It is to be observed that the roller 2| within journals 22, 22 may be removed and inserted by straightening out the lugs 22, 22 in the usual manner,

Below the cut-out portion I8 of front wall 15 and centrally thereof is a rear protrusion or button 23 preferably stamped from the front wall l5, while projecting forwardly from the sides of rear wall [5 are a pair of lugs M, 24. The resilient walls l5, and H3, button 23 and lugs 2d, 2d serve as the mounting elements for the afllxation of a metallic and non-adjustable clean.- er blade generally designated by numeral 35. Button 23 is adapted to engage a recess or an opening 3b in the blade 35 thereby preventing the latter from vertical movement while lugs 24, 2 3 prevent the blade from tilting laterally. It

is to be observed that the blades do not necessarily rest on bottom wall H. The vertical support of the blade is borne by button 23 and walls I5 and I6. It is advisable to have bottom wall I! extend as low as possible so that wall [6 is sufliciently long to firmly grip the front wall of the traverse bar l2 as will hereinafter appear. For purposes of expediency, it is preferable that the side edges of cleaner plate 35 be provided with a pair of notches 35a whereby an instrument such as a pair of tones may grip the blade thereat and force the same between resilient walls I5 and I6, and lugs 24, 24 until button 23 snaps into the blade opening. This operation for insertion and removal of blades within the bracket is thus made simple and fast without sacrificing rigidity of engagement.

The traverse bar clamping portion of the bracket consists of an upper horizontal wall 25 extending rearwardly from wall I6, the said wall I 6 having a downwardly extending rear wall portion 21, the bottom edge of which is turned outwardly as at 28. Rear wall 21 extends preferably below the bottom wall I! of the cleaner blade clamping portion. In section, the traverse bar clamping portion is in the form of an inverted U, the top wall 25 thereof having a groove 26 therein which is adapted to be engaged by the ends 33 of springs 32 secured along a longitudinal groove 36 in an inclined portion of the top face 29 of the traverse bar l2. Springs 32 are held in place within the groove 36 by means of a series of spaced screws 3|.

It is seen by a view of Figure 2 that the traverse bar clamping portion of bracket I4 is frictionally secured to traverse bar l2 by means of the resilient walls l6 and 21, the springs 32 cooperating with groove 26 to maintain a downward pressure of the bracket against the traverse bar l2. This form of engagement between the bracket and the traverse bar lends itself to ready removal and application from and on to the traverse bar by the hands of the operator, and makes a non-shiftable connection.

The cleaner blade 35, which forms the subject matter of a separate application for patent filed contemporaneously with the instant application is a modification of the known type of nonadjustable metallic blade having a central slot 36 with rounded edges and with reentrant angular guides 31, 31 at one end and terminating at the other end in a clearance opening 38. In the known type of metallic non-adjustable blade, there is an opening below 38 for afiixation of the blade to the bracket by means of a screw. Such an opening may be used to engage button 23 of the above described bracket. Also, in the known type of blade, the slot wall edges are sharp and an arrangement shown in Figure 2 would not work because of injury to the thread unless another guide were aligned with guide roller 2| so that thread H would pass through slot 36 in a straight line. However, where the slot wall edges of slot 36 are rounded, as in the improved blade, no chafing or cutting takes place when thread H runs through slot 36 at any angle.

In the improved blade an opening 39 may be provided to identify the size of the slot 36 by inserting a colored pellet therein whereby a foreman or superintendent by passing his eye along the traverse bar can easily weed out cleaner blades not of the same size and thus check on the efficiency of the operator.

We wish it understood that minor changes and variations in the location, integration, material, combination and subcombination of parts, may all be resorted to without departing from the spirit of the invention and the scope of the appended claims.

We claim:

1. A bracket for integral and fiat cleaner blades including a pair of parallel, spaced and springable blade clamping walls between which the cleaner blade is inserted and frictionally engaged, lateral guide members between said pair of blade clamping walls to prevent lateral play of the cleaner blade therewithin, a boss member on one of said walls to frictionally and detachably lock the cleaner blade in operative position between the said pair of walls, a third parallel, springable wall spaced from and forming with one of the cleaner blade clamping wallsa second pair of clamping walls to frictionally engage a member to which the bracket is attached.

2. A bracket for integral and fiat cleaner blades as set forth in claim 1 wherein a thread guide member is secured to the front wall of the pair of the cleaner blade clamping walls.

3. A bracket for integral and flat cleaner blades including a pair of parallel spaced and springable blade clamping walls between which the cleaner blade is inserted and frictionally engaged, a boss member on one of said walls to frictionally and detachably lock the cleaner blade in operative position between the said pair of walls, a third parallel springable wall spaced from and forming with one of the cleaner blade clamping walls a second pair of clamping walls to frictionally engage a member to which the bracket is attached, a thread guide member secured to the front wall of the pair of the cleaner blade clamping walls.

JOHN GIET. HENRY MIEDENDORP. JR. 

